Global Patent Index - EP 3296419 A1

EP 3296419 A1 20180321 - METHOD FOR SURFACE NITRIDING TITANIUM MATERIAL

Title (en)

METHOD FOR SURFACE NITRIDING TITANIUM MATERIAL

Title (de)

VERFAHREN ZUR OBERFLÄCHENNITRIERUNG VON TITANMATERIAL

Title (fr)

PROCÉDÉ DE NITRURATION DE SURFACE DE MATÉRIAU À BASE DE TITANE

Publication

EP 3296419 A1 20180321 (EN)

Application

EP 16792572 A 20160427

Priority

  • JP 2015095906 A 20150508
  • JP 2016063250 W 20160427

Abstract (en)

The purpose of the present invention is to provide a method for surface nitriding a titanium material as a convenient method for forming a hardened and nitrided layer having excellent wear resistance on the surface of a titanium material in a short period of time. In order to achieve this purpose, the present invention adopts a method for surface nitriding a titanium material characterized by blowing a nitrogen gas at a flow rate of at least 10 L/minute on the surface of a titanium material while heating the titanium material to 800°C-1000°C in an inert gas atmosphere to form a hardened and nitrided layer on the surface of the titanium ma - terial.

IPC 8 full level

C23C 8/24 (2006.01)

CPC (source: EP KR US)

C23C 8/02 (2013.01 - EP US); C23C 8/24 (2013.01 - EP KR US); C21D 1/06 (2013.01 - EP US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3296419 A1 20180321; EP 3296419 A4 20181205; EP 3296419 B1 20230823; CN 107683344 A 20180209; JP 2016211037 A 20161215; JP 6645644 B2 20200214; KR 20170131686 A 20171129; US 10487387 B2 20191126; US 2018155816 A1 20180607; WO 2016181847 A1 20161117

DOCDB simple family (application)

EP 16792572 A 20160427; CN 201680026872 A 20160427; JP 2015095906 A 20150508; JP 2016063250 W 20160427; KR 20177031496 A 20160427; US 201615569988 A 20160427